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B&C 6NDL44 6-1/2" Professional Neodymium Woofer 8 Ohm

B&C SpeakersPart # 294-647
Model: 6NDL44
The B&C Speakers 6NDL44 6-1/2" neo woofer offers exceptional power handling capacity combined with smooth, linear frequency response.

Key Features

  • Woofer/midrange
  • High-energy neodymium motor
  • 400 watt continuous program power
  • 1.7" copper voice coil on a polyimide former
  • Smooth, extended frequency response
  • 91.5 dB 1w/1m sensitivity
Your Price: $163.44
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MSRP: $272.40
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Estimated back in stock 9/5/2025
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Overview

B&C 6NDL44 6-1/2" Professional Neodymium Woofer 8 Ohm

B&C's 6NDL44 6-1/2" cast frame neodymium woofer is a lightweight, powerful choice for ultra-compact multi-way speaker systems. Its rubber half-roll edge and treated cone are engineered to handle high bass excursions without drama, while still allowing a clean, articulate sonic signature. The 6NDL44 is also suitable as the midrange element in medium efficiency 3-way applications.

Product Details

BrandB&C Speakers
Model6NDL44
Part Number294-647
UPC844632086038
Unit of MeasureEach
Weight2.7

Product Specifications

Nominal Diameter6-1/2"
Bolt Circle Diameter6.7
Power Handling (RMS)400 Watts
Impedance8Ω
Frequency Response70 to 6,000Hz
Sensitivity91.5dB 2.83V/1m
Voice Coil Diameter1.7"

Thiele-Small Parameters

Resonant Frequency (Fs)68Hz
DC Resistance (Re)5Ω
Voice Coil Inductance (Le)0.57mH
Mechanical Q (Qms)9
Electromagnetic Q (Qes)0.35
Total Q (Qts)0.34
Compliance Equivalent Volume (Vas)0.26ft³
BL Product (BL)10.3T·m
Diaphragm Mass Inc. Airload (Mms)17.8g
Maximum Linear Excursion (Xmax)6mm
Surface Area of Cone (Sd)132cm²

Materials of Construction

Cone MaterialPaper
Surround MaterialRubber
Voice Coil Wire MaterialCopper
Basket / Frame MaterialCast Aluminum
Magnet MaterialNeodymium

Mounting Information

Overall Outside Diameter7.4"
Baffle Cutout Diameter5.7"
Depth3.2"
# Mounting Holes8

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.18ft³
Sealed F3169.5Hz
Vented Volume0.25ft³
Vented F369.8Hz

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